long term this is kinda how I envision the language param tag being used. based on the new relay list nip you could add criteria that automatically only posts to certain relays by the language that is used.
Discussion
I don't think that kind of automatization will go a long way. It is probably simpler for the client to categorize relays in named groups -- or have some magic algorithm that cluster together relays that seem to be related to some groups.
